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authorLuke Leighton <lkcl@samba.org>1997-10-24 13:15:34 +0000
committerLuke Leighton <lkcl@samba.org>1997-10-24 13:15:34 +0000
commita12f04753348e6d52df1f9a2359794deacfc9007 (patch)
tree1b4afcd5c0819d7486504510b6681644101c7ebe /source3/client/ntclient.c
parentabb255cfe674a39c6a42f5083af9c5facdbcca05 (diff)
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nterr.c :
added a structure that wraps nt errors as strings and enums, so we can do a smb_nt_error() function. Makefile ntclient.c : added ntclient.c, broken out nt domain stuff into a separate file. getting fed up of compile-times and size of client.c. fixed the do_lsa_req_chal() function. made it read the response, and return the challenge credentials received from the server. next stop: do_lsa_auth_2(). client.c : removed nt domain logon functions into a separate file. pipenetlog.c pipentlsa.c pipesrvsvc.c smbparse.c : i'd broken the offsets of the RPC_HDR while trying to sort out the nt client code. fixed it again. added some robustness stuff. util.c : the unistrn2() function was null-terminating the string at one character too many. (This used to be commit 39cec7f698c4461aee05cfbb213879fbd486117d)
Diffstat (limited to 'source3/client/ntclient.c')
-rw-r--r--source3/client/ntclient.c222
1 files changed, 222 insertions, 0 deletions
diff --git a/source3/client/ntclient.c b/source3/client/ntclient.c
new file mode 100644
index 0000000000..decc2e34d6
--- /dev/null
+++ b/source3/client/ntclient.c
@@ -0,0 +1,222 @@
+/*
+ Unix SMB/Netbios implementation.
+ Version 1.9.
+ SMB client
+ Copyright (C) Andrew Tridgell 1994-1997
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#ifdef SYSLOG
+#undef SYSLOG
+#endif
+
+#include "includes.h"
+
+extern int DEBUGLEVEL;
+
+#define CLIENT_TIMEOUT (30*1000)
+
+/****************************************************************************
+do a LSA Request Challenge
+****************************************************************************/
+static BOOL do_lsa_req_chal(uint16 fnum,
+ char *desthost, char *myhostname, DOM_CHAL *srv_chal)
+{
+ char *rparam = NULL;
+ char *rdata = NULL;
+ char *p;
+ int rdrcnt,rprcnt;
+ pstring data; /* only 1024 bytes */
+ uint16 setup[2]; /* only need 2 uint16 setup parameters */
+ LSA_Q_REQ_CHAL q_c;
+ DOM_CHAL clnt_chal;
+ int call_id = 0x1;
+ BOOL valid_chal = False;
+
+ if (srv_chal == NULL) return False;
+
+ /* create and send a MSRPC command with api LSA_REQCHAL */
+
+ clnt_chal.data[0] = 0x11111111;
+ clnt_chal.data[1] = 0x22222222;
+
+ DEBUG(4,("LSA Request Challenge from %s to %s: %lx %lx\n",
+ desthost, myhostname, clnt_chal.data[0], clnt_chal.data[1]));
+
+ /* store the parameters */
+ make_q_req_chal(&q_c, desthost, myhostname, &clnt_chal);
+
+
+ /* turn parameters into data stream */
+ p = lsa_io_q_req_chal(False, &q_c, data + 0x18, data, 4, 0);
+
+ /* create the request RPC_HDR _after_ the main data: length is now known */
+ create_rpc_request(call_id, LSA_REQCHAL, data, PTR_DIFF(p, data));
+
+ /* create setup parameters. */
+ SIVAL(setup, 0, 0x0026); /* 0x26 indicates "transact named pipe" */
+ SIVAL(setup, 2, fnum); /* file handle, from the SMBcreateX pipe, earlier */
+
+ /* send the data on \PIPE\ */
+ if (cli_call_api("\\PIPE\\", 0, PTR_DIFF(p, data), 2, 1024,
+ BUFFER_SIZE,
+ &rprcnt,&rdrcnt,
+ NULL, data, setup,
+ &rparam,&rdata))
+ {
+ LSA_R_REQ_CHAL r_c;
+ RPC_HDR hdr;
+ int hdr_len;
+ int pkt_len;
+
+ DEBUG(5, ("cli_call_api: return OK\n"));
+
+ p = rdata;
+
+ if (p) p = smb_io_rpc_hdr (True, &hdr, p, rdata, 4, 0);
+ if (p) p = align_offset(p, rdata, 4); /* oh, what a surprise */
+
+ hdr_len = PTR_DIFF(p, rdata);
+
+ if (p && hdr_len != hdr.frag_len - hdr.alloc_hint)
+ {
+ /* header length not same as calculated header length */
+ DEBUG(2,("do_lsa_req_chal: hdr_len %x != frag_len-alloc_hint\n",
+ hdr_len, hdr.frag_len - hdr.alloc_hint));
+ p = NULL;
+ }
+
+ if (p) p = lsa_io_r_req_chal(True, &r_c, p, rdata, 4, 0);
+
+ pkt_len = PTR_DIFF(p, rdata);
+
+ if (p && pkt_len != hdr.frag_len)
+ {
+ /* packet data size not same as reported fragment length */
+ DEBUG(2,("do_lsa_req_chal: pkt_len %x != frag_len \n",
+ pkt_len, hdr.frag_len));
+ p = NULL;
+ }
+
+ if (p && r_c.status != 0)
+ {
+ /* report error code */
+ DEBUG(0,("LSA_REQ_CHAL: nt_status error %lx\n", r_c.status));
+ p = NULL;
+ }
+
+ if (p)
+ {
+ /* ok, at last: we're happy. return the challenge */
+ memcpy(srv_chal, r_c.srv_chal.data, sizeof(srv_chal->data));
+ valid_chal = True;
+ }
+ }
+
+ if (rparam) free(rparam);
+ if (rdata) free(rdata);
+
+ return valid_chal;
+}
+
+/****************************************************************************
+ open an rpc pipe (\NETLOGON or \srvsvc for example)
+ ****************************************************************************/
+static uint16 open_rpc_pipe(char *inbuf, char *outbuf, char *rname, int Client, int cnum)
+{
+ int fnum;
+ char *p;
+
+ DEBUG(5,("open_rpc_pipe: %s\n", rname));
+
+ bzero(outbuf,smb_size);
+ set_message(outbuf,15,1 + strlen(rname),True);
+
+ CVAL(outbuf,smb_com) = SMBopenX;
+ SSVAL(outbuf,smb_tid, cnum);
+ cli_setup_pkt(outbuf);
+
+ SSVAL(outbuf,smb_vwv0,0xFF);
+ SSVAL(outbuf,smb_vwv2,1);
+ SSVAL(outbuf,smb_vwv3,(DENY_NONE<<4));
+ SSVAL(outbuf,smb_vwv4,aSYSTEM | aHIDDEN);
+ SSVAL(outbuf,smb_vwv5,aSYSTEM | aHIDDEN);
+ SSVAL(outbuf,smb_vwv8,1);
+
+ p = smb_buf(outbuf);
+ strcpy(p,rname);
+ p = skip_string(p,1);
+
+ send_smb(Client,outbuf);
+ receive_smb(Client,inbuf,CLIENT_TIMEOUT);
+
+ if (CVAL(inbuf,smb_rcls) != 0)
+ {
+ if (CVAL(inbuf,smb_rcls) == ERRSRV &&
+ SVAL(inbuf,smb_err) == ERRnoresource &&
+ cli_reopen_connection(inbuf,outbuf))
+ {
+ return open_rpc_pipe(inbuf, outbuf, rname, Client, cnum);
+ }
+ DEBUG(0,("opening remote pipe %s - error %s\n", rname, smb_errstr(inbuf)));
+
+ return 0xffff;
+ }
+
+ fnum = SVAL(inbuf, smb_vwv2);
+
+ DEBUG(5,("opening pipe: fnum %d\n", fnum));
+
+ return fnum;
+}
+
+/****************************************************************************
+
+****************************************************************************/
+BOOL cli_lsa_req_chal(DOM_CHAL *srv_chal, char *desthost, char *myhostname,
+ int Client, int cnum)
+{
+ uint16 fnum;
+ char *inbuf,*outbuf;
+
+ if (srv_chal == NULL) return False;
+
+ inbuf = (char *)malloc(BUFFER_SIZE + SAFETY_MARGIN);
+ outbuf = (char *)malloc(BUFFER_SIZE + SAFETY_MARGIN);
+
+ if (!inbuf || !outbuf)
+ {
+ DEBUG(0,("out of memory\n"));
+ return False;
+ }
+
+ /* open the \PIPE\NETLOGON file */
+ fnum = open_rpc_pipe(inbuf, outbuf, PIPE_NETLOGON, Client, cnum);
+
+ if (fnum != 0xffff)
+ {
+ do_lsa_req_chal(fnum, desthost, myhostname, srv_chal);
+
+ /* close \PIPE\NETLOGON */
+ cli_smb_close(inbuf, outbuf, Client, cnum, fnum);
+
+ free(inbuf); free(outbuf);
+ return True;
+ }
+
+ return False;
+}
+